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Worcester-Bosch Greenstar 2000 - GR2300iW C Manual

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Key (accessories)
Greenstar 2000 – 6 721 820 553 (2020/01)
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4.6 Setting summer mode
The heating pump and consequently the heating are switched off in
summer mode. The DHW supply and also the power supply for heating
controls and timer remain active.
NOTICE:
Risk of the system freezing.
Frost protection is not available in summer mode.
▶ If there is a risk of frost, exit summer mode ( Chapter 6.1).
To activate summer mode:
▶ Press the ( key.
▶ Keep pressing the arrow key until appears in the display.
▶ Press the OK key to save. Otherwise the setting will be saved
automatically after 3 seconds.
] is permanently displayed.
Further notices can be found in the operating instructions for the heating
control.
4.7 Manual mode
Manual mode can be enabled to operate the boiler independent of
controls, should there be a technical issue with time and temperature
controls fitted.
To activate manual mode:
▶ Press and hold the ( key for 5 seconds.
▶ Check the flow temperature shown and adjust if necessary.
– The flow temperature will be shown in between two hyphens,
indicating manual mode.
Fig. 8 Manual mode shown on display
Manual mode should be used for a limited time only until the time and
temperature controls are fixed.
▶ To disable Manual Mode press and hold the ( key for 5 seconds.
5 Key (accessories)
5.1 Key LED
Key accessory location
▶ The Key can be located underneath the appliance on the right hand
side.
Key LED status
The LED [1] on the Key displays different states with flashing or constant
colours.
Table 4 LED status
For more information please refer to your control manual.
Description of the LED displays Example
Flashing red:
Fault, e.g. no communication between the Key and
appliance:
▶ Install the Keyagain, restore the last functioning status.
Flashing yellow:
No fault, user please wait.
Flashing green:
No fault, initialisation process is running.
Constant red:
Temporary fault:
▶ Wait for normal operating condition to be resumed.
Constant yellow:
▶ Keys with touch-sensitive indicator: Press touch-
sensitive indicator on Key to start pairing.
Constant green:
No fault, normal operating condition.
LED Off:
No fault, power-saving mode or appliance without power.
… 10 …


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  • I had a Worcester Greenstar 24i boiler replaced. The installers fitted a replacement boiler Worcester Greenstar 2000 GR2300iW C. The output heat is 20KW.
    I need advice is this boiler as I think a lower output heat than my old one. Submitted on 20-10-2021 at 00:18

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